Dual exhaust .... What are you running

I just installed Doug's Headers w 2.5 inch pipes going to Cherry Bomb Salute mufflers on my 65 Barracuda. Then 2.25 pipes from the mufflers over the rear axle w regular downturns. While 2.5 inch pipes "fit" over the rear axle, they occasionally rubbed on something back there (on my car anyway) so I had the exhaust shop put 2.25 pipes on.
This system sounds REALLY nice and is MUCH quieter than the single exhaust I was running which consisted of an Accurate Ltd Y pipe, no muffler and an NOS chrome tip resonator.